using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace IStation.Unit
{
    /// <summary>
    /// 单位辅助类
    /// </summary>
    public class UnitHelper
    {
        /// <summary>
        /// 获取单位辅助类接口对象
        /// </summary>
        public static IUnitHelper GetUnitHelper(eUnitType unitType)
        {
            IUnitHelper helper = null;
            switch (unitType)
            {
                case eUnitType.未知: break;
                case eUnitType.流量:helper = new UnitQHelper();break;
                case eUnitType.压力:helper = new UnitPRHelper();break;
                case eUnitType.扬程:helper = new UnitHHelper();break;
                case eUnitType.体积:helper = new UnitVolHeper();break;
                case eUnitType.频率:helper = new UnitHZHelper();break;
                case eUnitType.电流:helper = new UnitCurrentHelper();break;
                case eUnitType.电压:helper = new UnitVoltageHelper();break;
                case eUnitType.转速:helper = new UnitNHelper();break;
                case eUnitType.效率:helper = new UnitEHelper();break;
                case eUnitType.有功功率:helper = new UnitPHelper();break;
                case eUnitType.无功功率:helper = new UnitPQHelper();break;
                case eUnitType.视在功率:helper = new UnitPsHelper();break;
                case eUnitType.有功电度:helper = new UnitDegreeHelper();break;
                case eUnitType.无功电度:helper = new UnitDegreeQHelper();break;
                case eUnitType.长度:helper = new UnitLHelper();break;
                case eUnitType.温度:helper = new UnitTPHelper();break;
                case eUnitType.浊度:helper = new UnitTUHelper();break;
                case eUnitType.浓度:helper = new UnitCOHelper();break;
                case eUnitType.湿度:helper = new UnitHMHelper();break;
                case eUnitType.电导率:helper = new UnitCondHelper();break;
                case eUnitType.音量:helper = new UnitSouHelper();break;
                case eUnitType.累积时间:helper = new UnitSumTimeHelper();break;
                case eUnitType.千吨能耗:helper = new UnitWPHelper();break;
                case eUnitType.单位能耗:helper = new UnitUWPHelper();break;
                case eUnitType.速度:helper = new UnitSpeedHelper();break;
                case eUnitType.加速度:helper = new UnitGSpeedHelper();break;

                case eUnitType.自定义: break;
                default: break;
            }
            return helper;
        }

        /// <summary>
        /// 获取英文字典
        /// </summary>
        public static Dictionary<int, string> GetEnUnitDict(eUnitType unitType)
        {
            var helper = GetUnitHelper(unitType);
            return helper?.GetEnUnitDict();
        }

        /// <summary>
        /// 获取英文名称
        /// </summary>
        public static string GetEnUnitName(eUnitType unitType, int unitValue)
        {
            var helper = GetUnitHelper(unitType);
            if (helper == null)
                return unitValue.ToString();
            var name = helper.GetEnUnitName(unitValue);
            if (string.IsNullOrEmpty(name))
                return unitValue.ToString();
            else
                return name;
        }

        /// <summary>
        /// 获取英文名称
        /// </summary>
        public static string GetEnUnitName(eUnitType unitType, string unitValue) 
        {
            switch (unitType)
            {
                case eUnitType.未知: return unitValue;
                case eUnitType.自定义: return unitValue;
                default: break;
            }
            if (!int.TryParse(unitValue, out int unitValue_int))
                return string.Empty;

            var helper = GetUnitHelper(unitType);
            if (helper == null)
                return string.Empty;
            var name = helper.GetEnUnitName(unitValue_int);
            if (name == null)
                return string.Empty;
            else
                return name;
        }

        /// <summary>
        /// 获取中文字典
        /// </summary>
        public static Dictionary<int, string> GetCnUnitDict(eUnitType unitType)
        {
            var helper = GetUnitHelper(unitType);
            return helper?.GetCnUnitDict();
        }

        /// <summary>
        /// 获取中文名称
        /// </summary>
        public static string GetCnUnitName(eUnitType unitType, int unitValue) 
        {
            var helper = GetUnitHelper(unitType);
            if (helper == null)
                return string.Empty;
            var name = helper.GetCnUnitName(unitValue);
            if (name == null)
                return string.Empty;
            else
                return name;
        }

        /// <summary>
        /// 获取中文名称
        /// </summary>
        public static string GetCnUnitName(eUnitType unitType, string unitValue) 
        {
            switch (unitType)
            {
                case eUnitType.未知: return unitValue;
                case eUnitType.自定义: return unitValue;
                default: break;
            }
            if (!int.TryParse(unitValue, out int unitValue_int))
                return string.Empty;

            var helper = GetUnitHelper(unitType);
            if (helper == null)
                return string.Empty;
            var name = helper.GetCnUnitName(unitValue_int);
            if (name == null)
                return string.Empty;
            else
                return name;
        }
    }
}